autofs: add WARN_ON(1) for non dir/link inode case
authorTomohiro Kusumi <kusumi.tomohiro@gmail.com>
Tue, 11 Oct 2016 20:52:36 +0000 (13:52 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 11 Oct 2016 22:06:31 +0000 (15:06 -0700)
It's invalid if the given mode is neither dir nor link, so warn on else
case.

Link: http://lkml.kernel.org/r/20160812024754.12352.8536.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/autofs4/inode.c

index 3f486c1f5f43a1c6e600fa5a84cf837f50823a41..a61521eaf11396c1a6500ed5e11b0a12517823ef 100644 (file)
@@ -368,7 +368,8 @@ struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)
                inode->i_fop = &autofs4_dir_operations;
        } else if (S_ISLNK(mode)) {
                inode->i_op = &autofs4_symlink_inode_operations;
-       }
+       } else
+               WARN_ON(1);
 
        return inode;
 }